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Re: Transparent IDLgrImage ? [message #38735]

Fri, 26 March 2004 08:47

Karl Schultz
Messages: 341
Registered: October 1999

Senior Member

You can specify a 4-channel image with IDLgrImage. The 4th channel is the
alpha channel, which you can set to zero for the pixels that you want to be
transparent.

"Antonio Santiago" <d6522117@est.fib.upc.es> wrote in message
news:4064344E.8060707@est.fib.upc.es...
> hi, friends
>
> I have a 3D view with a polygon represent a data volume. I have put
> three polygons with an image as a texture map. The image represent a
> slice of the volume (i take the values of the position of slice in the
> volume and make an image.
>
> I'd like to make an image of slice data volume but:
> 1- The "points" with value different of 0 i want to see in the imge.
> 2- The "points" with value different of 0 i dont want to see, i want to
> be transparents
>
> Thanks.
>

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Re: Transparent IDLgrImage ?

By: Karl Schultz on Fri, 26 March 2004 08:47

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